Mechanical movement.



PATENTED SEPT. 4, 1906. J. H. MOBLROY.

MECHANICAL MOVEMENT.

APPLICATION FILED 0012.10, 1903. RENEWED DBO. 16, 1905.

2 SHEETS-SHEET 1.

v .vl MH H.

u. mw ,W

mum

m Y g m m @MIM m i M m L- Wm m NN W M m w MM Il ...m m v m .h

HIIMWMMHIJW.

.Wil

PATENTED SEPT. 4, 1906.

J. H. MOELROY. MECHANICAL MOVEMENT. APPLICATION FILED 001,10, 190s.RBNEWED DBO. 1e, 1905.

2 SHEETS-SHEET Z.

JOHN HOWARD MCELROY, OF CHICAGO, ILLINOIQ.

MECHANICAL MOVEMENT.

Specification of Letters Patent.

Patented Sept. 4, 1906.

Application filed October 10, 1903. Renewed December 16, 1905. SerialNo. 292.056x

To all wiz/mit t Hz/ty concern:

Be it known that I, JOHN HOWARD MGEL- ROY, a resident of Chicago, in thecounty of Oook and State of Illinois, have invented a certain new anduseful Mechanical Movement, of which the following is a specification.

My invention is concerned with a novel mechanical movement by which Itransform the continuous rotary movement of a shaft in one directioninto the intermittent angular or rotary movement of the element to whichthe power is finally applied, and between the intermittent rotarymovements of said element I give it a reciprocating movement transverseto the rotation thereof.

To illustrate my invention, I annex hereto two sheets of drawings, inwhich the same ref'- erence characters are used and designate identicalparts in all the figures, of which- Figure 1 is a side elevation showingmy movement mounted in a frame. Fig. 2 is a vertical section on the lineA A of Fig. 1. Fig. 3 is a vertical section on the line B B of Fig. 2.Fig. 4 is a vertical section on the line O O of Fig, 2. Fig. 5 is avertical section on the line D D of Fig. 4. Fig. 6 is a vertical sectionon the line E E of Fig. 4.

To support the elements of my movement, I employ a pair of frame-pieces10 and 1 1 ,spaced apart and rigidly connected by any kind of rods orcross-pieces. Journaled in bearings 12 and 18 on the frame-pieces isthesupporting spider, preferably made of two starshaped castings 14 and 15,having the central hubs 16 and 17 whose outer reduced portions 1S and 19form its journals. The main shaft 20 extends through the machine and isfrictionally mounted in the hubs 16 and 17, by which it is supported,and the amount of friction necessary is only enough to overcome theinertia of the shaft and its attached parts. Spacing-rods 21, connectingthe castings 14 and 15, are employed to give rigidity to the spider.

The elements to which the power is finally applied are thetransversely-swinging plates 22, pivoted at one side to the outer endsof the spider-arms. The inner faces of the plates are provided with theears 23, and the sleeve 24, secured on the shaft 20, is provided with acorresponding number of ears 25. Links 26, pivoted in the two sets ofears, connect the plates and hub and forni one set of members ofthetoggle-joints, the other members of which are formed by the ears 25 andassociated parts. Vhen the spider is rotated intermittently through anarc varying with the number of plates employed, (the arc beingseventy-two degrees where there are five plates, as shown,) the platesare held in their inner position, as shown in full lines in Fig. 3. Vhenthe spider is held stationary between its alternate advances the shaft20 is rotated in the direction of the arrow so as to swing the links 26from the full-line to the dotted-line position. As the togglesstraighten out in passing the center the plates 22 are forced out, thelimit of their outward movement being shown in dotted lines in Fig. 3and their exact position being shown in dotted lines in Fig. 1, thespider being shown in the full-line positions halfway between itspositions of rest in which the plates are projected. During thealternate advances of the spider the links 26 are in the dotted-lineposition, and it will be apparent that the alternate projections of theplates must be produced by rotating the shaft 2O in the directionopposite to the arrow.

In the structure shown the sequence of the movements of the parts for afull cycle is as follows: The spider is advanced seventy-two degrees(carrying with it the shaft 20) and locked. dred and forty-four degrees,(projecting and withdrawing the plates during its movement.)

The spider is advanced another seventy-two degrees (carrying with it theshaft 20) and locked, and the shaft 2O is moved back one hundred andforty-four degrees, (projecting and withdrawing the plates.) Theinechanism for securing this cycle of movements from acontinuously-rotating shaft is as follows: The driving-shaft 27 isjournaled ina bearing 28 on the frame-piece 10 and is preferably drivenfrom the line-shaft at a reduced rate through the belt-wheel 29,ljournaled on the stud 30 and having the gearpinion 31 on its hub 32meshing with the gear-wheel 33, secured on the shaft 27. The spider isintermittently advanced and locked by the Geneva-stop-driving members 34and locking-faces 35, secured on the shaft 27, engaging with the fiveslotted and faced Geneva-stop-driven disks 86,sccured on the reducedportion 19 of the hub 17, preferably inside ofthe frame-piece 10. Iproduce the alternate forward and backward. movements of the shaft 2Oindependently of the movements of the spider by means of a modifiedGeneva-stop-driving mechanism which omits The shaft 20 is advanced onehun-` IOO IIO

the locking function, while retaining that of starting the driven memberwithout jar and 'stopping it gradually, but completely, at the moment ofdisengagement. The modified Geneva-stop-driven disk 37, secured on theend of the shaft 20, has the five slots 38 therein on the face thereofand running together at the center, as is necessary in extending themfar enough toward the center to permit of the antifriction-roller 39 onthe swinging driving member 40 approaching as close to the center of thedisk as is necessary in moving the disk 37 through one hundred andforty-four degrees at each swing of the member 40. The driving-lever 40is pivoted on the stud 4l, projecting from the frame-piece 10, and isswung back and forth by the crankarm 42'on the driving-shaft 27 throughthe link 43, pivoted to the end of the crank-arm 42 and to the member 40at 44.

The operation of the movement will now be readily apparent. While it canrotate in either direction, we will assume that it is rotating in thedirection of the arrows in Fig. 1. In the position shown the spider isadvanced just half-way to a stopping-point by the engagement of thedriving member 34 with the disk 36, as seen in Fig. 4, and the shaft 20and disk 37 are moving with the spider, the member 40 being entirely outof engagement with the latter disk. As the rotation continues thedriving member 34 is disengaged from the disk 36 which is immediatelylocked by one of the faces 35. As soon as this has been effected themember 40, which has been 'swinging toward the disk 37, carries theroller 39 into one of the slots 33 in the disk, which has been stoppedin the proper position, as the seventy-two degrees it has been moved bythe spider is one-half of the one hundred and forty-four degrees it ismoved by its own driving member 40. The continued forward movement ofthe member 40 swings the disk 37 through its one hundred and forty-fourdegrees, operating the plates as explained above. At the end of itsmovement the disk 37 is positively stopped, 'as the roller 39 fitssnugly in the slot and is moving radially of the disk at the instant itis disengaged therefrom, and the disk 36 being unlocked it is advancedanother seventyltwo degrees by its other driving member 34,

the spider carrying the shaft 20 and disk 37 with it. At the end of itsmovement it is again locked by the other face 35, and the member 40,which is now swinging backward, engages the disk 37 to rotate the shaft20 backward one hundred and forty-four degrees to extend the plates andbring the toggles back to the starting position.

While I have shown and described my invention as embodied in the formwhich I at present consider best adapted to carry yout its purposes, itwill be understood that it is capable of modifications and that I do notdesire to be limited in the interpretationl of the following claimsexcept as may be necessitated by the prior art. y

What I claim as new, and desire to secure by Letters Patent of theUnited States, is-

l. In a mechanical movement, the combination with anintermittently-rotatable support and an element carried, thereby andadapted to be moved transversely between advances of the support, of acontinuouslyrotating shaft, and connections between said shaft andelement comprising a swinging member adapted to reciprocate said elementduring its movement in either direction, and Geneva-stop mechanisminterposed between said shaft and support, and shaft and member, bywhich they are operated alternately to (l) advance the support, (2) toswing the i member in one direction to reciprocate the element (3) toadvance the support 3 and (4) to swing the member in the oppositedirection to reciprocate the element.

2. In a mechanical movement, the combination with anintermittently-rotatable support and an element carried thereby andadapted to be moved transversely between advances of the support, of acontinuouslyrotating shaft, two angularlyseparated Geneva-stop-drivingmembers and acrank-arm carried by said shaft, a swingingGeneva-stopdriving member adapted to reciprocate said element during itsmovement in either direction, a link connecting said crank-arm andswinging member, two Geneva-stop-driven members carried by said supportand engaged alternately by said driving members, one driven memberalways moving with the support, and connections between the other drivenmember and the element whereby the relative movement of thelast-mentioned driven member and support reciprocates the element.

3. In a mechanical movement, the combination with anintermittently-rotatable support and an element carried thereby andadapted to be moved transversely between advances of the support, of acontinuouslyrotating drivingeshaft, two Geneva-stopdrivenmechanismscarried by the support, one always moving with the support, and theother movable relative thereto, and connections between the element andsaid second driven member whereby the movement of the latter relative tothe support reciprocates the element, and two sets of Geneva-stopdrivingmechanisms driven by said shaft, and operating alternately, one movingalways in one direction and advancing the support,and the otherswingingback and forth and ad apted to reciprocate said element duringits movement in either direction. y

4. In a mechanical movement, the combination with anintermittently-rotatable support and an element carried thereby andadapted to be moved transversely between IOO advances ot the support, ofa continuouslyrotating driving-shaft, two angularly-separatedGeneva-stop-driving members and a crank-arml carried by said shaft, aGenevastop disk secured to the support, a second Geneva-stop-diskconcentric with the 'lirst, connections between said second disk andelement adapted to reciprocate the element as the disk is swung ineither direction between the advances ot the support, a swingingGeneva-stop-driving member cooperating with the second disk, and a linkconnecting said crank-arm and swinging member.

5. In a mechanical movement, the combination with anintermittently-rotatable support and an element carried thereby andadapted to be moved transversely between advances ot the support; of acontinuouslyrotating shaft, connections between said shaft and elementcomprising a reciprocatable,angularly-moving driven member,whosemovement in either direction while the support is at rest serves toreciprocate said element, a swinging driving member engaging andcooperating with the driven member during a portion ot its movement ineither direction, and means for swingingl said driving member; andconnections between said shaft and support for advancing the latterintermittently while the swinging members are out ot' engagement.

(i. In a mechanical movement, the combination wth a rotatable support,of an element carried thereby and adapted to be moved transverselybetween advances ofthe support, a main shaft jonrnaled in said support,a reciprocatable, angularly-moving driven memb ersecured to said shaft,connections between sai d element and member by which the movement oi'the latter in either direction independently ot the support servestoreciprocate said element, a swinging driving member engaging andcooperating with said driven member during a portion of its movement ineither direction, a rotating driving-shaft having a crank-arm thereon, alink connecting said crank-arm and swinging. driving member, andconnections between said driving-shaft and support i or advancing thelatter while the swinging members are out of engagement.

7. In a mechanical movement, the combination with a rotatable support,of an element carried thereby and adapted to be movedtransverselybetween advances of the support, a main shaft journaled insaid support; a reciprocatable, angularly-moving driven member securedto said shaft, connections between said element and member by which themovement ot the latter in either direction independently ot the supportserves to reciprocate said element, a swinging driving member engagingand cooperating with said driven member during a portion of its movementin either direction, a rotating driving-shaft having a crank-armthereon, a link connecting said crank-arm and swinging driving member,and Geneva-stop connections between said driving-shaft and support foradvancing the latter intermittently while the swinging members are outot' engagement.

S. In a mechanicat movement, the combination with aninterinittently-rotatable support and an element carried thereby andadapted to be moved transversely between advances ot the support of' acontinuouslyrotating shaft; connections between said shait and elementcomprising a reciprocatable, angula'rlymoving driven member, whosemovement in either direction serves to reciprocate said element, aswinging driving member engaging and cooperating with the driven memberduring a portion of its movement in either direction, and means forswinging said driving member and Genevastop connections between saiddriving-shaft and support `for advancing the latter intermittently whilethe swinging members are out ot' engagement.

9. In a mechanical movement, the combination with the rotatable support,themain shaft concentric therewith and carried thereby, the elementmounted in the support and movable transversely of its direction ofrotation, and the toggle-j oint connections between said shaft andelement ot the two Genevastop-driven disks on the support and`shalit,respectively, and the two Geneva-stop-driving members cooperatingtherewith alternately, the one driving the support always moving in onedirection, and the one driving the shaft swinging back and forth; andmeans Yfor giving the driving members the movements described.

10. In a mechanical movement, the combination with the rotatablesupport, the main shaft concentric therewith and carried thereby, theelement mounted in the support and movable transversely of its directionof rotation, and the togglejoint connections between said sha'ft andelement; ot the two Geneva-stop-driven disks on the support and shaft,respectively, and the two Geneva-stopdriving members cooperatingtherewith alternately, the one driving the support always moving in onedirection, and the one driving the shaft swinging back and forth; acontinuously-rotating driving-shaft operating the rotating drivingmember and having a crankarm thereon, and a link connecting the arm andthe swinging driving member.

11. In a meclianical movement, the combination with anintermittently-rotatable support, of an element carried thereby andadapted to be moved transversely between advances ot the support, amember concentric with the support, connections between said element andmember whereby the relative movement ot the member and supportreciprocates said element, a contimiously-ro- IOO IIO

tating driving-shaft, a Geneva-stop-driving member on said shaft, astop-disk rigid with the support and engaged by the driving member, andconnections between said drivingshaft and irst member for moving thelatter intermittently between advances of the suport. p 12. In amechanical movement, the combination with an intermittently movable mainshaft, of a support thereon, an element carried by said support andadapted to be moved transversely between movements of the shaft7 andconnections between said shaft and element adapted to reciprocate thelatter as theformer is moved relative to the support, I 5 acontinuously-rotating driving-shaftI and driving and locking connectionscarried by said shafts and support and directly engaging each other sothat said main shaft and support are alternately driven by said driving-2o shaft.

' In witness whereof I hereunto subscribe my name this 8th day ofOctober, A. D. 1903.

JOHN HOWARD MCELROYI Witnesses:

WM. H. CHAMBERLIN, MINNIE N. CHAMBERLIN.

